Fluid circulation type heating device provided with overpressure protection element

Abstract

The present invention relates to a fluid circulation type heating device which circulates fluid by means of heating and cooling and, more particularly, to a fluid circulation type heating device provided with overpressure protection element which can prevent pressure increase of a circulation path of a fluid. The fluid circulation type heating device according to the present invention for achieving the aforementioned purpose comprises a circulation line, a heat radiation member installed on the circulation line, a boiler which heats and expands a fluid, a storage tank which stores the fluid therein and supplies the same to the boiler, a controller which controls the boiler, and a housing which accommodates the boiler and the controller. In addition, the device has an opening formed in fluid communication with the storage tank or the circulation line, and further comprises an overpressure protection element which blocks the opening, wherein the overpressure protection element is configured to prevent fluid from passing through and allowing a vapor of the fluid to pass through, thereby dropping the pressure of the storage tank and the circulation line. The fluid circulation type heating device according to the present invention discharges, to the outside, steam from the inside of a circulation path and does not discharge fluid to the outside, thereby preventing overpressure loaded onto the fluid circulation path of a heating device. In addition, should the heating device fall over, it is possible to prevent fluid from being discharged to the outside. Furthermore, it is possible to prevent external foreign material from being introduced into the circulation path, thereby preventing damages of components or generation of odor, due to contamination of fluid caused from the external foreign material.

What is claimed is: 
     
       1. A fluid circulation type heating device comprising:
 a circulation line; 
 a heat dissipation member installed on the circulation line; 
 a boiler configured to heat and expand a fluid; 
 a storage tank configured to store the fluid and supply the fluid to the boiler and having a first opening; 
 an auxiliary tank installed on the circulation line between the storage tank and the boiler or between the heat dissipation member and the storage tank, the auxiliary tank having a second opening; 
 a controller configured to control the boiler; 
 a housing configured to accommodate the boiler and the controller; and 
 an overpressure prevention member closing the first opening and configured to prevent the fluid from passing therethrough and to allow a vapor of the fluid to pass therethrough so as to reduce a pressure inside the storage tank and the circulation line. 
 
     
     
       2. The device of  claim 1 , wherein the overpressure prevention member includes a fluororesin film attached to a surface on which the first opening is formed, and a nonwoven fabric attached to the fluororesin film. 
     
     
       3. The device of  claim 1 , wherein the first opening is formed on an upper surface of the storage tank. 
     
     
       4. The device of  claim 1 , wherein the storage tank is removably mounted in a storage tank mounting portion of the housing,
 wherein the storage tank includes an outer wall configured to define an internal space for accommodating the fluid, and a backflow prevention means mounting member installed in a through-hole formed in the outer wall and provided with an outflow hole through which the fluid is discharged and an inflow hole through which the fluid is introduced, 
 the storage tank mounting portion of the housing has an inlet connected to the circulation line on an upstream side of the boiler and communicating with the outflow hole, and an outlet connected to the circulation line on a downstream side of the heat dissipation member and communicating with the inflow hole, and 
 the device further comprises a backflow prevention means installed in the outflow hole of the backflow prevention means mounting member. 
 
     
     
       5. A fluid circulation type heating device comprising:
 a circulation line; 
 a heat dissipation member installed on the circulation line; 
 a boiler configured to heat and expand a fluid; 
 a storage tank configured to store the fluid and supply the fluid to the boiler; 
 an auxiliary tank installed on the circulation line between the storage tank and the boiler or between the heat dissipation member and the storage tank, the auxiliary tank having an opening; 
 a controller configured to control the boiler; 
 a housing configured to accommodate the boiler and the controller; and 
 an overpressure prevention member closing the opening of the auxiliary tank and configured to prevent the fluid from passing therethrough and to allow a vapor of the fluid to pass therethrough so as to reduce a pressure inside the circulation line. 
 
     
     
       6. The device of  claim 5 , wherein the overpressure prevention member includes a fluororesin film and a nonwoven fabric attached to the fluororesin film. 
     
     
       7. The device of  claim 5 , wherein the opening is formed on an upper surface of the auxiliary storage tank.